A year ago at CTIA Wireless, Samsung unveiled Galaxy S, which hit the market in June 2010. Over the next seven months, the company worldwide managed to sell some 10 million of the Androidpowered Galaxy S smartphones.

Today, the converged device has become more ambiguous, with executives throwing it around as fill-in for just about any device that combines multiple technologies, not just voice and data. For instance, a smartphone that can double as (or at least control) a set-top box, or a tablet that can perform many of the functions of a laptop or PC...